The customer is a mold maker for the plastics industry that contacted Allied to test BTA tooling. The workpiece is a 21" thick test block made of P20 material (28-32 Rc). They are using a Schienke Gundrill machine with Hulcut 745D semi-synthetic coolant (10% concentrate) at 1000 PSI.
Tool used: Ingersoll brazed carbide BTA drill
- Hole diameter = 0.734" (18.64mm)
- Hole depth = 21" (533.4mm)
- 1300 RPM
- 0.0054 IPR ( 0.137 mm/rev)
- 7.02 IPM (178.3 mm/min)
- Cycle time = 3 minutes 10 seconds
- Tool life = 19 holes
- Cost per hole = $7.94
The customer needed to decrease total hole costs and improve the tool life.
Allied recommended the BT-A Drill.
Tool used: BT-A Drill with special insert (item 081021-22) and holder (081021-21)
- 1575 RPM
- 0.0046 IPR
- 7.23 IPM
- Cycle time = 3 minutes 4 seconds
- Tool life = 39 holes
- Cost per hole = $6.71
The BT-A Drill successfully decreased total hole costs while improving the tool life.
- Increased tool life by 105%
- Overall cost savings = 15.52%